My now ex boyfriend and father of my child...was i wrong for walking away?

We have bn 2gether for 2 yrs. he is my 1rst as in i lost my virginity & i am havin my first child it is his. just yesterday we broke up & he made it clear everything is my fault. i didnt cheat on him even though he cheated on me & treat him like a king. i compromise & changed who i was 4 him but he says i dont know how 2 compromise. yesterday he says"u hve 2 change 4 me 1st,make me happy,give me what i need b4 i think about givin anythin 2 u, i have 2 change 4 him." i got upset bcuz he was sounding really selfish he doesnt ever take heed 2 what i need & 2 think about it he really hasnt but he stands by his words that its all my fault after he said all that & accused me of cheating i i kinda made a uncomfortable laugh 1 of those are u serious & he told me 2 get out of his car. i was fed up with him being selfish and not givin me a chance to tell him what i nd & i told him if i get out i am goin n da house he made get out so i went n the house was i wrong. i dont wnt 2 stress anymore & i tired of nt bein heard